Cooling mechanism for explosion-engines.



PATENTED MAY 9, 1905.

H. RICHTER.

COOLING MECHANISM FOR EXPLOSION ENGINES.

APPLIGATION FILED NOV. 24. 1903.

2 SHEETS-SHEET 1.

No. 789,382. PATENTED MAY 9, 1905.

I II. RICHTER. I COOLING MECHANISM FOR EXPLOSION ENGINES.

APPLICATION FILED NOV. 24. 1903. v

2 SHEETSSHEET 2.

ma s

J- iw' M UNITED STATES Patented May 9, 1905.

PATENT OEEIcE.

HANS RICHTER, OF NUREMBERG, GERMANY, ASSIGNOR TO THE FIRM OF VEREINIGTEllIASOHINENFABRIK AUGSBURG UND MASOHINENBAU- GESELLSCHAFT NURNBERG A.G., OF NUREMBERG, GERMANY.

COOLING MECHANISM FOR EXPLOSION-ENGINES.

SPECIFICATION forming part of Letters Patent No. 789,382, dated May 9,1905.

Application filed November 24, 1903- Serial No. 182,536.

To all whom it may concern:

Be it known that I, HANs RICHTER, engineer, a subject of the Emperor ofGermany, residing in Nuremberg, in the Empire of Germany, (whose fullpostal address is Gleisbuhlstrasse, aforesaid,) have invented certainnew and useful Improvements in Cooling Mechanism for Explosion Engines,of

which the following is a specification.

The principal difliculties which are found in the construction of largegas-engines are in connection with making a durable cylinder. Thisproblem has not hitherto been solved in an entirely satisfactory manner,15 cylinders frequently cracking more particularly in proximity to thevalve-boxes, where in consequence of slower circulation of the water,air, or steam bubbles may form.

Now this invention has for its object to remove such defects by causing,by means of a peculiar arrangement of the pipes conveying thecooling-water to and away from these parts, a specially vigorouscirculation of water at the places likely to be injured. This 2 5 may bedone by means of the arrangement hereinafter described, and shown in theaccompanying drawings, where it is employed in connection with adouble-acting gas-engine with valve-boxes cast thereon.

Figure 1 is a cross-section; Fig. 2, a vertical section, and Figs. 3 and4 different con structions embodying the same principles. Fig. 5 is asectional view of a cylinder and its piston with my invention appliedthereto.

3 5 The admission of water takes place, as may be seen from Fig. 1, Fig.2, lower part, and Fig. 3, from beneath upward between the lowervalve-boxes (L at the points I) through bent pipes c and d, which arecar- 4o ried so far round the respective valve-boxes a that the closedfree ends e and f of the bent pipes c and (1, respectively, face oneanother at a small distance apart. Such a pipe is provided with lateralopenings g, directed 4 5 toward the axis of the valve-boxes a.

The arrangement adopted for carrying oil the water is shown in Fig. 1,Fig. 2, at the top, and Fig. 4.

Discharge-pipes 7c, which are closed at their rear ends Z and providedwith a series of discharge-apertures m, are arranged in the narrowspaces between each upper valvebox it and the annular walls i, servingfor shutting off or inclosing the cooling-chamber. On the front end ofeach pipe ka pipe n is connected, directed uniformly with thelongitudinal axis of the cylinder. The two pipes 11. are connected inthe center of the cylinder and attached at 0 to the outer pipe fordischarging the cooling-water.

The cooling-water, which enters at b, flows through the bent pipes c andcl on the valve boxes a, is here distributed over the entirecooling-chamber, and rises to the summit of the same, at the same timeabsorbing heat.

Before running away the stream of cooling-water divides before finallyescaping at 0 to the outside through the upper apertures of thedischarge-pipes 7c and the connectingpipes n.

In consequence of the arrangement adopted a rapid water circulationtakes place especially in the narrow chambers or spaces in proximity tothe valve-boxes, so that neither air nor steam bubbles can form.

Of course the cooling-water may be conveyed to or carried 01f from otherparts in a precisely similar manner, where a checking or retardation ofthe circulation of the cooling-water or the formation of air or steambubbles is to be feared.

I declare that what I claim is An arrangement for coolingexplosion-engines consisting of the cooling-casing for the cylinder,inlet-pipes therein surrounding one set of valve-boxes and havingopenings for discharging the water thereagainst, and the outlet-pipesfor the cooling-casing having openings in the portions which areadjacent the other set of valve-boxes.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

HANS RICHTER.

Witnesses MARTIN OFFENBACHER, HEEMANN DoHLEMANN.

